Pituicytoma: Case Report

We report a case of Pituicytoma, which is a rare brain tumor occuring in the sellar region. A 44-year-old woman presented with polyuria, polydipsia, visual disturbance, amenorrhea and galactorrhea 1 year prior to admission. A magnetic resonance image revealed a well enhancing pituitary mass with large suprasellar extension. There was no area of normal hyperintensity showing the posterior lobe of the pituitary gland. The tumor was subtotally removed via transsphenoidal surgery. Pathological examination of the surgical specimen showed astrocytes with spindle-shaped fibrillary cytoplams. Immunohistochemical staining was positive for glial fibrillary acidic protein, S-100, vimentin. Radiotherapy was not given after surgery.